object Archives - Page 12 of 13

How do I check if an object has a key in JavaScript? [duplicate]

This question already has answers here: How do I check if an object has a specific property in JavaScript? (30 answers) Closed 8 ...

April 11, 2022
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Iterate through object properties

var obj = { name: "Simon", age: "20", clothing: { style: "simple", hipster: false } } for(var propt in obj){ console.log(propt + ': ...

April 10, 2022
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Detecting an undefined object property

What’s the best way of checking if an object property in JavaScript is undefined? 50 50

April 10, 2022
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Checking if a key exists in a JavaScript object?

How do I check if a particular key exists in a JavaScript object or array? If a key doesn’t exist, and I try ...

April 9, 2022
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What is the most efficient way to deep clone an object in JavaScript?

This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. ...

April 9, 2022
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How do I copy an object in Java?

Create a copy constructor: class DummyBean { private String dummy; public DummyBean(DummyBean another) { this.dummy = another.dummy; // you can access } } ...

April 7, 2022
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Java Undefined Object

By “undefined object as a parameter”, I assume you mean that you’re looking to write a function that doesn’t specify the type of ...

April 7, 2022
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Calling a function of a module by using its name (a string)

What is the best way to go call a function, given a string with the function’s name in a Python program. For example, ...

April 7, 2022
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How to identify object types in java

You forgot the .class: if (value.getClass() == Integer.class) { System.out.println("This is an Integer"); } else if (value.getClass() == String.class) { System.out.println("This is a String"); ...

April 7, 2022
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How to sort an array of objects in Java?

You have two ways to do that, both use the Arrays utility class Implement a Comparator and pass your array along with the comparator to the sort method which ...

April 5, 2022
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